Converting null literal or possible null value to non-nullable type.

Possible null reference return.

'X509Certificate2.X509Certificate2(byte[])' is obsolete: 'Loading certificate data through the constructor or Import is obsolete. Use X509CertificateLoader instead to load certificates.' (https://aka.ms/dotnet-warnings/SYSLIB0057)

'X509Certificate2.X509Certificate2(byte[])' is obsolete: 'Loading certificate data through the constructor or Import is obsolete. Use X509CertificateLoader instead to load certificates.' (https://aka.ms/dotnet-warnings/SYSLIB0057)

Non-nullable field '_keyPair' must contain a non-null value when exiting constructor. Consider adding the 'required' modifier or declaring the field as nullable.

'X509Certificate2.X509Certificate2(byte[])' is obsolete: 'Loading certificate data through the constructor or Import is obsolete. Use X509CertificateLoader instead to load certificates.' (https://aka.ms/dotnet-warnings/SYSLIB0057)

Argument of type 'Validation<string?>' cannot be used for parameter 'valT' of type 'Validation<string>' in 'Validation<StatusListEntry> ValidationFun.Apply<string, StatusListEntry>(Validation<Func<string, StatusListEntry>> valF, Validation<string> valT)' due to differences in the nullability of reference types.

Converting null literal or possible null value to non-nullable type.

Unboxing a possibly null value.